A retrieving oceanic vector wind algorithm and the precision analysis of its error in accordance with the HY-2 satellite's microwave scatterometer was put forward in the paper, and a technical process of data acquisition, pre-process, wind vector retrieve and production manufacture about the HY-2 satellite microwave scatterometer was also given. It will be ready on technology for making a due ontribution once the HY-2 satellite is launched and promotes our country's oceanic microwave remote sensing technique development.